Currently, OpenCDA regards all traffic lights with id -1 as stop signs and will stop there for 2 seconds before moving. However, once a stop sign is activated by a vehicle, its id will change to a positive int, and won't change back to -1 until a while. Thus, current stop sign behavior is not robust. We will try to make a better stop sign behavior in the next version.
Currently, OpenCDA regards all traffic lights with id -1 as stop signs and will stop there for 2 seconds before moving. However, once a stop sign is activated by a vehicle, its id will change to a positive int, and won't change back to -1 until a while. Thus, current stop sign behavior is not robust. We will try to make a better stop sign behavior in the next version.